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Usage:
Get a current selected camera number
Send:“60,02,00\n” -> Receive:“61,02,02\n”
(Your system is selecting a camera 2)
Select a camera number 12
“61,02,0c\n” -> Receive:“61,02,0c\n” (Selection
success. Your system is selecting a camera 12)
Timing and delay specification:
Sending commands after camera selection
Your system can send camera select command and
control commands simultaneously (into a same TCP
packet). The control commands will send to selected
Camera/CCU immediately.
Receiving commands after camera selection
Your system has to wait 50msec or more if your
system requires responses from Camera/CCU.
Session switching by “Camera Select” command
takes several tens of milliseconds to ready to setup
session between CNA-1 and Camera/CCU.
Address Selector command
Format:
Add an attribute to control a command destination.
“[CMD-GP],[PARAM0],[PARAM1],[COMMAND]\n”
CMD-GP: 0x6c
PARAM0: Destination device type
0x02 Camera (CHU + CCU)
PARAM1: Destination device number 0x00 to 0x60
(0 to 96 decimal)
COMMAND: Control command that your system needs to
send.
Usage:
Send:“6c,02,02,23,a9,00,00\n” (Clear Master black of
Camera 2)
-> Receive: No response
“6c,02,02” is an address selector command. This
means “Send command to Camera 2”
“23,a9,00,00” is normal control command
Send:“6c,02,02,23,a9,00,00\n6c,02,03,23,a9,00,00\n”
(Clear Master black of Camera 2 and Camera 3 at same
time)
-> Receive: No response
Processing commands with address selector arrived from
other device in the network
Your system can be received command with “Address
Selector” from other devices. If your system receives the
commands, your system should decompose that into
destination header (Address Selector command) and
control command.
Your system can process the received control commands
and also can discard the commands if your system does
not need to process.
Inter-packet interval limitation
This limitation described on SSCP document is applied
each session individually at multiple camera control.
The packet interval limitation can be ignored if you send
commands to different Camera/CCU.
Example:
Send: “6c,02,01,23,a9,00,00\n”
Acceptable shorter
|
than 50 msec
Limited more
Send: “6c,02,02,23,a9,00,00\n”
than 50 msec
|
Send: “6c,02,01,23,60,00,00\n”
Acceptable shorter
Limited more
|
than 50 msec
than 50 msec
Send: “6c,02,02,23,60,00,00\n”
Page 17
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